If there is a small amount of variation, then the standard deviation is what

Q: If the variance of the recorded weights of nine basketball players is 2.36, what is the value of the…

A:

Q: The spread or dispersion of a set of data about the mean will be large if the standard deviation is…

A: Solution

Q: If the mean is zero and the standard deviation is one in a normal distribution, what type of normal…

A: We know that if the normal distribution has 2 parameters as mean, μ and standard deviation, σ, where…

Q: Describe carefully how mean deviation, standard deviation and quartile deviation of any given…

A: Mean deviation : Mean Deviation is the mean of all absolute deviations of a set of data. Standard…

Q: What is the standard deviation of y?

A:

Q: standard deviation?

A: From the given data, the minimum and maximum values are, 20.5 and 110.7 The range is, The mean is,

Q: If the variance of a distribution is 16, the standard deviation is?

A: Solution: From the given information, the variance of a distribution is 16.

Q: The standard deviation may not be greater than the mean. O True O False

A: False: standard deviations may be greater than mean  example: random variable x follow standard…

Q: The standard deviation of the certain distribution is 9, what is its variance?

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: What is the standard deviation of the data?

A: We want to calculate standard deviation

Q: The variance of a sample of 99 observations equals 81. The standard deviation of the sample equals?

A: From the provided information, The sample variance of 99 observations (s2) = 81

Q: . A distribution has a coefficient of variation of 65% and mean of 47. What is the value of the…

A:

Q: Suppose a probability and statistics class took an exam that had a mean of 60 and a standard…

A: Given, E(X)=60 SD(X)=12   After 10 Point curve Let Y be new variable.

Q: It is possible to have a standard deviation of -1 for some data set? True or False

A: See the below solution

Q: Is it possible for the standard deviation of a list of numbers to equal 0? If so, give an example.…

A: Standard deviation refers to the spread in the data set. If the standard deviation equals zero, it…

Q: As the size of a sample increases, the standard deviation of the distribution of sample means…

A: Here  Standard deviation of sample mean = σn

Q: If the average score on a statistics exam was 76, and the standard deviation was 7, what can you…

A: Given : The average score on a statistics exam was 76, and the standard deviation was 7

Q: What would happen to the margin of error if the standard deviation were to decrease? it would…

A: We know that ,Margin of error=critical value ×standard deviation sample sizeMargin of error =Zα2 ×σn…

Q: How does one calculate the standard deviation?

A:

Q: if the standard deviation of a sample is 0.5 find the variance

A:

Q: Give two situations in which comparing two population standard deviations would be important

A: Two situations in which comparing two population standard deviations would be important is obtained…

Q: If the coefficient of variation is 1% and the mean is 3.2, determine standard deviation (to four…

A: We have given that Mean(x̅) = 3.2 CV = 0.01

Q: In general, the larger the animal the longer the length of pregnancy. For the horse, for example,…

A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: find standard deviation if range is 3.

A: Given: Range = 3

Q: A population has a mean of 75 and a standard deviation of 15. If you randomly sample 9 people from…

A: Mean = 75 Standard deviation = 15 Sample size = 9

Q: Suppose the exam average in a class is 72% with a standard deviation of 3. What proportion of…

A: Given data: Average score = 72 % Standard deviation  = 3% To find: What proportion of students…

Q: The standard error of an estimator is the standard deviation of the estimator. True False

A: The Standard Error of the estimator is the Standard deviation of the estimator.

Q: What is the deviation?

A: Deviation is Difference between the Given observed value and One fixed Value...

Q: If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will…

A:

Q: A distribution has standard deviation of 41.9 and mean of 74. What is the coefficient of variation?

A: Given standard deviation=41.9 mean=74

Q: When a distribution is bell-shaped, approximately what percentage of data values fall within 1…

A: We know that, the empirical rule which is also known as 68-95-99.7 rule.  The Empirical Rule finds…

Q: is 6% is your standard deviation?

A: Given according to question Sample size(N)=? Confidence =95% Margin of error = 5% Now question says…

Q: If mean is 20 and standard deviation is 5, what value of x contain the lowest 20% of the…

A: Solution

Q: When standardizing, the mean becomes 0 and the standard deviation becomes 1. True

A: The formula for standard normal score is, z=x-μσHere μ is the mean andσ is the standard deviation.

Q: Square of the standard deviation is called

A:

Q: If the true mean is 9590 with the standard deviation of 0.0080 within what interval will 98% of…

A: Given that , True mean = 9590 Standard Deviation = 0.0080

Q: If a number is added to a data set which is far away from the arithmetic mean the what happens to…

A: There are two properties regarding the addition of a number to a data set and its effect on standard…

Q: What us the variance of a distribution having a standard deviation of 5.26?

A: Given, standard deviation=5.26 find variance=?

Q: Explain the standard deviation?

A: Standard deviation: Both the standard deviation and the variance are based on how much each…

Q: The larger the standard deviation, the more dispersed the set of data is.     True or False

A: # The larger the standard deviation, the more dispersed the set of data is.?? True

Q: The variance of a sample of 100 observations 81. the standard deviation of the sample equals?

A:

Q: What conclusion can you make base on the standard deviation?

A: Answer:

Q: In simple terms that a normal person can understand. What is population deviation and sample…

A: Difference between the population deviation and sample deviation.

Q: True or false. If the standard deviation of a dataset is 0, the mean must also be 0.

A: Mean is the average value around which the whole data set is concentrated. Mean for the set of 'n'…

Q: What happens to the standard deviation if the differences between the mean and data values are…

A: The standard deviation, which is described through a mathematical quantity to measure the amount of…

Q: The variance of a sample of 169 observations equals 576. The standard deviation of the sample equals

A: Givenvariance(σ2)=576

Q: Suppose a population has a mean weight of 180 pounds and a standard deviation of 25 pounds. A sample…

A: Formula : The standard error of the mean  : σ_x̄ = σ/√n

Q: The margin of error is larger if the standard deviation of the population increases (assume all else…

A: Given that, Standard deviation of the population increases.

Q: IF THE VARIANCE OF A POPULATION IS 0.75, THE STANDARD DEVIATION MUST BE?

A: It is an important part of statistics . It is widely used .